Locomotive consisting of two or more cars



Feb; 3. 1 925.

F. LJUNGSTROM LOCOMOTIVE GONSISTING OF TWO OR MORE CARS Filed Sept. 24, 1925 E v emf or Patented Feb. 3, 1.925.

ET 'i STATES FREDRIK LJUNGSTROIJI, OF LIDINGO-BREVIK, SVT EDEN, ASSIGNOR TO AKTIEBOLAGET LJUNGSTEOMS ANGTURBIN, OF STOGKI-IOLIVI, SWEDEN, A CORPORATION.

LOCOMOTIVE CONSISTING OF TWO OR MORE CARS.

Application filed September To all whom it may concern:

Be it known that I, FREDRTK LJUNG- STROM, a subject of the Kin of Sweden, residing at Lidingo -Brevik, weden, have invented certain new and useful Improvements in Locomotives Consisting of Two or More Cars, of which the following is a specitication.

Locomotive constructions are known in which the boiler and the machinery of the locomotive are placed in part or entirely on separate cars. In such constructions it is necessary to draw steam pipes from the boiler or the machinery on one car to another car having other machinery, which pipes must, of course, be resilient or articulated, in order to permit the necessary turning movements between the cars. In 10- comotives, it has also previously been suggested to use a condenser situated on a separate car in which case the driving machinery of the locomotive has been placed chiefly on the condenser car for the purpose of making it possible to dimension the steam conduit between the cars from the boiler to the driving machine as small as possible, which is effected in locomotives ot the said type by conducting high pressure steam through said conduit. The said high pressure conduit having passed between the cars, branch pipes would be extended therefrom to the auxiliary machines of the locomotive, Thus, it has been necessary to use remote control of the different machines of the condenser car, which is of course disadvantageous, as the devices necessary for the admission of the steam, etc. must extend from one car to another.

The present invention has for its object to obviate these disadvantages, and consists in that the conduits for steam, water. oil or the like extending between the cars are spiral-shaped or bent in any other way. or provided with bends in order to bring about the resiliency required to facilitate the turn ing movements of the cars. The part of the conduits extending between the cars which effects the resiliency is preferable arranged in or near the axis about which the turning of the cars takes place.

All these steam conduits, which in the constructions hitherto known. have been branched oil from the high pressure conduit after the latter has passed between the cars, may consequently have their admission de- 24, 1923. Serial No. 664,599.

vices within the drivers cab, the pressure gauges and other apparatus belonging to these conduits being also placed within reach of the driver. By means of an arrangement according to the present invention the driver consequently has a better control over the locomotive, as all instrm ments for remote control and remote reading may be dispensed with, and all handwheels and reading devices may be arranged in a place within the drivers cab where they can be easily reached by the driver.

In the accompanying drawings, an embodiment of the invention is shown diagrammatically. Fig. 1 shows a locomotive according to the invention, and Fig. 2 shows a section of the: arrangement forming the object of the invention.

The locomotive shown in Fig. 1 consists of two cars 1 and 2, the boiler 3 being arranged on the one car 1 and the driving machine 1 on the other car 2. The locomotive is provided with an air-cooled condenser 5 which is placed together with a steam stor ing liquid receptacle 6 belonging to the condenser plant on the same car as the driving machinery 4 which, in the embodiment shown, consists of a steam turbine and mechanical power transmitting means compris ing a toothed gearing and a coupling rod appliance. Situated on the car ,1 supporting the boiler is a coal bunker 7 which, in the embodiment shown, is placed behind the drivers cab 8 counted in the normal running direction. I

In the embodiment shown, the locomotive is provided with only one driving set 4, but driving sets maybe arranged at both ends of one or both of the cars. The locomotive may also consist of more than two cars. For instance, the car 2 carrying the condenser may be conceived as divided into two or more cars, in case the length of each car, which is limited by running in curves etc, would not permit the condenser plant to be placed in its entirety on one car. Likewise, the loco-motive consist of two or more cars 1 carrying the same boiler, or separate boil.- ers, and auxiliary cars may also be used for water and coal supplies.

On the side of or above the coal bunker 7, the high pressure steam conduit 9 extends in a groove or the like preferably insulated from the place in the drivers cab 8, where the starting device for the drivingengine of the locomotive is arranged, onto the rear extends out of the casing 12 and passes dipart of car 1, where, according to the invention, the conduit is given such a shape by means of a downwardly extending coil that the resiliency of this coil will permit such a movement between the different cars as is apt to occur in the locomotive passing through curves. This coil 10 is surrounded by a special casing or chamber 11 which encloses the coil entirely and insulates it from cooling effects, whereby it is not necessary to insulate the conduit itself to the disadvantage of the resiliency.

As shown in the drawing, the coil 10 is arranged around the axis A. i about which the turning of the cars takes place. The coupling between the cars shown in the drawings may of course be varied. For instance, a coupling device consisting of links or the like may be used, by means of which the turning of the cars takes place around an axis lying outside the coupling proper, the coil 10 being arranged in or near said turning axis.

In Fig. 1 only one conduit is shown as extending between the two cars, but in the casing 11, other conduits may of course also be extended in the same way as the conduit 9,

so that the necessary resiliency is obtained also in said conduits.

Fig. 2 shows a section of the casing or chamber 11 on the line AB in Fig. 1. As before, 7 is the coal bunker placed on the car 1, at the rear head of which the casing or chamber 12 is placed in this case, said casing or chamber being U-shaped in the embodiment shown. The casing encloses the pipes 15, 15", 15 etc. which are to be drawn from the car 1 to the car 2. Among these conduits, 15 for instance, is a conduit leading high pressure steam to the driving engine, 15 a conduit leading high pressure steam to the pump for the water of condensation, 15 a. conduit to the feed pump, 15 the con duit to the driving means for the fans etc.

In this case, the pipes 15 are U-shaped and so arranged in relation to each other and to the surrounding casing 12 that their U- shaped. parts adjust themselves by spring action to suit the difierent angular positions between the cars l and 2 which are apt. to occur when the locomotive is running in a curve. The casing 12 is preferably provided wit-h a cover whereby the conduits arranged within the same may be looked after. In the embodiment shown, the pipes 15 are attached to common flanges 13 and 14:, the flange 13 serving for connecting the pipes to pipe conduits rigidly arranged on the boiler car 1, whereas the flange 14 in the other end of the pipe coil is attached to cor responding pipes rigidly arranged on the car 2. When the cars are uncoupled, only the flange 14 is disengaged; The high pressure conduit 15 tothe turbine is bentat 16,

rectly to the driving engine situated on the same level and indicated in the iigure by the rectangle 17. On account of the U-shapc oi the casing, space is obtained, because the turbine 17 may no placed in the intervening space of the casing.

Several other modifications of the inven tion may be conceived without exceeding the scope of the same. therinore, independent of the number or pipes passing between the two cars and of the medium conducted by the pipes. lVIO1t over, the resilient coil of the pipes may be shaped otherwise than described and shown, provided the said resiliency in the conduits is permitted.

What I claim as new and desire to secure by Letters Patent oi the United States of America is 1. In steam locomotives, consisting of two cars connected one behind the other by means of a coupling arranged for a definite axis oi? rotation between the cars, a boiler situated on the one car, a driving steam motor situated on the other car, a plurality of conduits for steam, oil, water and the like situated on the front car and ending on the one side of the rear part of said car, a plurality of conduits for steam, oil, water and the like situated on the rear car and ending on the opposite side of the front part of said car, and rigid. pipes between the cars connecting the ends of said conduits, said pipes being so shaped as to bring about the resiliency required to allow the turning movements of the cars.

2. In steam locomotives, consisting of two cars connected one behind the other by means of a coupling arranged for a definite axis of rotation between the cars, a boiler situated on the one car, a driving steam motor situated on the other car, a plurality of conduit-s for steam, oil, water and the like situated on the front car and ending on the one side of the rear part of the said car, a plurality of conduits for steam, oil, water and the like situated on the rear car and end ing on the opposite side of the front part of said car, and rigid U-shaped pipes between the cars connecting the ends of said conduits in order to bring about the resiliency re quired to allow the turning movements of the cars.

3. In steam locomotives, consisting of two cars connected one behind the other by means of a coupling arranged for a definite axis of rotation between the cars, a boiler situated on the one car, a driving steam motor situated on the other car, a plurality of conduits for steam, oil, water and the like situated on the front car and ending on the one side of the rear part of said car, a plurality of conduits for steam, oil, water and the like situated on the rear car and The invention is, fun

ending on the opposite side of the front part of said car, rigid pipes between the cars connecting the ends of said conduits, said pipes being so shaped as to bring about the resiliency required to allow the turning movements of the cars, and a casing surrounding said pipes and mounted on the front car.

4. In steam locomotives, consisting of two cars connected one behind the other by means of a coupling arranged for a definite axis of rotation between the cars, a boiler situated on the one car, a driving steam motor situated on the other car, a plurality of conduits for steam, oil, water and the like situated on the front car and ending on the one side of the rear part of said car, a plurality of conduits for steam, oil, water and the like situated on the rear car and ending on the opposite side of the front part of said car, and rigid U-shaped pipes between the cars connecting the ends of said conduits in order to bring about the resiliency required to allow the turning movements of the cars, the legs of the U-shaped pipes being situated on either side of the axis of rotation of the coupling.

In testimony whereof I afiix my signature in presence of two witnesses.

FREDRIK LJUNGSTROM. Witnesses:

KARL RUNEsKoe, L. BERGTINCLE. 

